| Popis: |
In the current environment of severe climate change, studying the adaptability of Norway spruce to the environment, that is, local adaptation is of great significance for helping to protect forest tree species and genetic breeding. As a structural variation, copy number variations (CNVs) have been proved to play an important role in shaping population structure and local adaptation in marine species, going beyond traditional studies focusing only on SNPs. Therefore, this experiment was to investigate the association of genotypes, including CNVs and SNPs, with local adaptation in Norway spruce. About 5.631% of CNVs were screened from SNPs, and the population structure of Norway spruce was detected based on the data of SNPs and CNVs. Then, the associations between genotypes (SNPs and CNVs) and the environmental variables are calculated by the model, considering the effects of population structure. Finally, the relationship between CNVs and SNPs and local adaptation of Norway spruce was investigated by redundancy analysis (RDA). The results preliminarily revealed that SNPs and CNVs had certain effects on the local adaptation of Norway spruce and a significant correlation with various environmental factors. However, the results indicated comparing to SNPs, CNVs had no significant effect on the local adaptation of Norway spruce. |
